<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
用户姓名：<input type="text" name="" size="30" /><br />
手机号码：<input type="text" name="user" size="30" /><br />
密码：<input type="text" name="" size="30" /><br /><br>
<input type="submit" name="" id="" value="登录" />
</body><br action="" method="">
